CN201179547Y

CN201179547Y - Novel cast apparatus for brake drum

Info

Publication number: CN201179547Y
Application number: CNU2008200766913U
Authority: CN
Inventors: 申明堂
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-31
Filing date: 2008-03-31
Publication date: 2009-01-14
Anticipated expiration: 2018-03-31

Abstract

The utility model belongs to the technical field of mechanical casting, specifically relates to a brake drum novel casting device used for manufacturing a front and a back brake drums on various types of vehicle. The brake drum novel casting device solves the problems of complex art, great labor intensity, high cost, low production efficiency, etc. for manufacturing the vehicle brake drum in the prior art, and comprises an upper resin shell core and a lower resin shell core which are butted together. The space between the upper resin shell core and the lower resin shell core is of a brake drum shape, the upper resin shell core is provided with an exhaust hole and a gating cup, and a flexible sandbox is hooped outside a casting core formed by the upper resin shell core and the lower resin shell core. The brake drum novel casting device adopts the structure of the flexible sandbox for the first time, not only has light weight, but also can vary arbitrarily. The length can be regulated, the height can be increased and reduced, and a box has multiple functions. Under the condition of unfolded arrangement, a place of some square meters can be placed with hundreds of sandboxes. The brake drum novel casting device has the advantages of high production efficiency, high yield, high product smooth finish, light weight and favorable quality.

Description

Brake drum novel casting device

Technical field

The utility model belongs to the machine casting technical field, is specially a kind of brake drum novel casting device that is used to make the front and back brake drum on the various vehicles.

Background technology

Up to now, the Foundry Production of brake drum still is confined to traditional manual molding modeling and two kinds of main modes of machine molding, manual molding modeling is big owing to existing labour intensity, working time is long, sandbox mould heaviness, foundry goods fertilizer is stupid, the percent defective height, the molten iron utilization rate is low, serious problems such as environmental pollution.Basically do not have the workman to be ready to do the very large work of this labour intensity at present, a lot of producers are forced to stop production.Also there are problems in machine moulding, and these problems are not the problem of machine molding itself, but because the features of shape of brake drum is not suitable for machine molding, its shortcoming shows that the mulling amount is big.Because product is relatively more advanced, pattern draft is big, and allowance is big, and empty bad molding is crossed in the bad control of sand hardness.And cause swell to make casting section thickness inhomogeneous; Cross real same bad molding, and gas permeability is bad, the percent defective height, seriously polluted, it is at a loss what to do invest the difficult problem that the problems referred to above such as big use machine molding producer to face, and can't tackle the problem at its root.Other technology, the disappearance mould is produced, and facts have proved also to be not suitable for using; Device for sand coated iron mould, because of operation is loaded down with trivial details, investment is big, and molding sand can not reclaim, too high and unmanned employing of cost.Permanent mold casting, mould manufacturing expense height, life-span is short, and especially foundry goods spoken parts in traditional operas problem is an obstacle that is difficult to go beyond, for example technology such as Chinese patent disclosed " automobile brake drum all-metal pattern tool ", " automobile brake drum novel casting mould ", " brake drum permanent mold casting mould ".Owing to still exist problems in actual use, and do not accepted by manufacturer, can't transform, can not be applied to produce.The producer that starts individually all stops production, and haves no alternative but reuse traditional handicraft, and the highly intensive labour of traditional handicraft is suffered untold misery the workman, and efficiency is very low, and flow of personnel is frequent, and enterprise administrator is very difficult to connective tissue and produces.

Summary of the invention

The utility model is in order to solve the manufacturing automobile brake drum complex process that exists in the prior art, and labour intensity is big, cost height, problem such as production efficiency is low and a kind of brake drum novel casting device is provided.

The utility model is realized by following technical scheme, a kind of brake drum novel casting device, comprise the last resin shell core and the following resin shell core that are docking together, space between last resin shell core and the following resin shell core is the braking drum type, last resin shell core is provided with steam vent, cup, hoop has flexible sandbox outside the casting core of last resin shell core and the formation of following resin shell core.

A kind of structure of flexible sandbox flexibility of serving as reasons is taken the lead the tail butt joint and is constituted, and an end of flexible band is provided with eccentric lock and takes, and the other end of flexible band is hinged with handle, is hinged with eccentric lock ring on handle.Connected mode is the eccentric lock ring set to be connected on eccentric lock cost, thereby turning handle makes the docking port of flexible band apart from shortening the casting core in the flexible sandbox tightly be embraced then.A kind of structure of flexible band is a sheet iron, and the another kind of structure of flexible band is some carrier bars that are arranged in parallel, and connects by lock ring between the carrier bar.The third structure of flexible band is some carrier bars that are arranged in parallel, and connects by the whole piece chain belt between the carrier bar.

Compared with prior art, the utility model has adopted the structure of flexible sandbox first, and is not only in light weight, and can random variation, and length can be adjusted, and height can be added and subtracted, and uses for one the case more.Under the situation of launching to place, up to a hundred sandboxes just can be placed in the place of several square meters.Be provided with some steam vents on last resin shell core, exhaust is happy, and the mouth of cast is located at the top and can saves molten iron and reduce cost.Below cup, place screen pack,, guarantee product quality with purifying molten iron.The utility model does not have pattern draft, and allowance is little, and the product glossiness height is in light weight, and quality is good, the yield rate height, and molten iron utilization rate height can reduce casting and fine finishining cost significantly, and very high economic and social benefit is arranged.

Comprehensive, the utlity model has following advantage: 1, reduce labour intensity significantly, thoroughly improve work situation, improved economic benefit and social benefit, become the male worker into main industry for the woman worker is main, both be suitable for manual type, be suitable for mechanization moulding again, adaptability is strong, and is flexible.2, cast(ing) surface is highly polished, and size is accurate, and is in light weight, and quality is good.3, production efficiency height, the yield rate height, molten iron utilization rate height, through the actual production checking, foundry goods per ton (according to varying in size) can reduce the cost that 200-300 unit does not wait again on original profit basis of invariable.4, save the place, reduce floor space and fixed assets input.5, realized carrying out synchronously of fusing and moulding, production efficiency is doubled and redoubled.

Description of drawings

Fig. 1 is a structural representation of the present utility model

Fig. 2 is first kind of structural representation of flexible band

Fig. 3 is the Facad structure schematic diagram of Fig. 2 after launching

Fig. 4 is the structure schematic diagram of Fig. 2 after launching

Fig. 5 is the another kind of structural representation of flexible band

Fig. 6 is the Facad structure schematic diagram of Fig. 5 after launching

Fig. 7 is the structure schematic diagram of Fig. 5 after launching

Fig. 8 is the third structural representation of flexible band

Fig. 9 is the Facad structure schematic diagram of Fig. 8 after launching

Figure 10 is an another kind of structural representation of the present utility model

Among the figure: 1-foundary weight, 2-steam vent, 3-screen pack 4-cup, the last resin shell core of 5-, resin shell core under the 6-, the flexible sandbox of 7-, 8-ingate, 9-remove heavy muscle, 10-brake drum, the 11-handle, the eccentric lock ring of 12-, the 13-eccentric lock is taken, the 14-carrier bar, 15-lock ring, 16-whole piece chain belt, the 17-screw, 18-interface pad, 19-chain Xiao Huan.

The specific embodiment

As schematically shown in Figure 1, a kind of brake drum novel casting device, comprise the last resin shell core 5 and the following resin shell core 6 that are docking together, space between last resin shell core 5 and the following resin shell core 6 is the braking drum type, last resin shell core 5 is provided with steam vent 2, cup 4, hoop has flexible sandbox 7 outside the casting core of last resin shell core and the formation of following resin shell core.

Above flexible sandbox 7, be provided with foundary weight 1, below cup 4, place screen pack 3.

In the interlayer between last resin shell core 5 and flexible sandbox 7 for removing heavy muscle 9.

Go heavy muscle 9 density less than the resin shell core, such design helps reducing the overall weight of resin shell core, thereby further reduces cost, and raises labour efficiency.

Structure illustrated in Figure 10 is basic consistent with Fig. 1, and the main distinction is to go up resin shell core 5 and the inversion of following resin shell core 6 in the vertical directions.

As Fig. 2,5,8 signals, a kind of structure of flexible sandbox 7 flexibility of serving as reasons is taken the lead tail butt joint and is constituted, and an end of flexible band is provided with eccentric lock and takes 13, and the other end of flexible band is hinged with handle 11, is hinged with eccentric lock ring 12 on handle 11.Connected mode is eccentric lock ring 12 to be socketed in eccentric lock take on 13, thereby turning handle makes the docking port of flexible band apart from shortening the casting core in the flexible sandbox tightly be embraced then.

Interface at flexible sandbox 7 is provided with interface pad 18.

As Fig. 8,9 signals, a kind of structure of flexible band is a sheet iron,

As Fig. 2,3,4 signals, the another kind of structure of flexible band is some carrier bars that are arranged in parallel 14, connects by lock ring 15 between the carrier bar 14.

As Fig. 5,6,7 signals, the third structure of flexible band is some carrier bars that are arranged in parallel 13, connects by several whole piece chain belts 16 between the carrier bar, and all carrier bars are connected on the whole piece chain belt 16 by screw 17.

Present embodiment is to be example to make automobile brake drum.Method is as follows:

One, goes up the making of resin shell core 5 and following resin shell core 6, the first step combines core and closes, second step was closed cavity with the resin sand that the mixes core of packing into, appropriate compacting, resin sand are a little more than the core face that closes, and band resin sand solidifies the back to be wipeed it off with a dull and stereotyped chi, the 3rd step was to open core successively to close, take out core, and relating to product contact site spary fireproof coating, promptly finish whole coremaking process.

Two, the seam that will go up resin shell core 5 and following resin shell core 6 aligns, and assembling gets final product, and with its banding, screen pack is laid at the top with flexible sandbox 7 in the outside, and cup and foundary weight are promptly finished manufacture process.

Three, the casting brake drum can be with reference to existing foundry engieering.

Claims

1, a kind of brake drum novel casting device, comprise the last resin shell core (5) and the following resin shell core (6) that are docking together, space between last resin shell core (5) and the following resin shell core (6) is the braking drum type, it is characterized in that: go up resin shell core (5) and be provided with steam vent (2), cup (4), hoop has flexible sandbox (7) outside the casting core that resin shell core and following resin shell core form.

2, brake drum novel casting device according to claim 1 is characterized in that: be provided with foundary weight (1) in flexible sandbox (7) top, place screen pack (3) in cup (4) below.

3, brake drum novel casting device according to claim 1 and 2, it is characterized in that: a kind of structure of flexible sandbox (7) flexibility of serving as reasons is taken the lead tail butt joint and is constituted, one end of flexible band is provided with eccentric lock and takes (13), the other end of flexible band is hinged with handle (11), is hinged with eccentric lock ring (12) on handle (11).

4, brake drum novel casting device according to claim 3 is characterized in that: a kind of structure of flexible band is a sheet iron.

5, brake drum novel casting device according to claim 3 is characterized in that: the another kind of structure of flexible band is some carrier bars that are arranged in parallel (14), connects by lock ring (15) between the carrier bar (14).

6, brake drum novel casting device according to claim 3, it is characterized in that: the third structure of flexible band is some carrier bars that are arranged in parallel (14), connect by several whole piece chain belts (16) between the carrier bar, all carrier bars are connected on the whole piece chain belt (16) by screw (17).

7, brake drum novel casting device according to claim 1 and 2 is characterized in that: in the interlayer between last resin shell core (5) and flexible sandbox (7) for removing heavy muscle (9).

8, brake drum novel casting device according to claim 1 and 2 is characterized in that: the interface at flexible sandbox (7) is provided with interface pad (18).